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Introduction to iron removal of PTMS magnetic separation
published date: 2024/6/10

dry type magnetic separator

Taking the acid-soluble PTMS magnetic separation iron removal method as an example, the acid solution was used to transform the insoluble compounds into soluble compounds and were separated from kaolin. Kaolin acid immersion iron removal is very effective for hematite (soluble in acid) attached to the surface of kaolin, but not suitable for kaolin containing iron sulfide minerals, ilmenite, etc.

PTMS magnetic separation


Generally, sulfuric acid, hydrochloric acid and oxalic acid can be used for kaolin heating to remove iron, but the destruction of kaolinite lattice, it is difficult to maintain the crystal form and physical properties of kaolinite; oxalic acid can dissolve the iron ions on the mineral surface and the lattice without affecting the lattice structure and physical and chemical properties of kaolin.

how to separate two magnets?


Therefore, in the actual production process, polyphosphate, ethylenediamine acetate, oxalic acid, oxalic acid, citric acid and metal ions can be used to generate stable water-soluble ao compounds to achieve the purpose of kaolin iron removal and bleaching. The research and development of the technology to improve the whiteness of kaolin has been under way, and in recent years, PTMS has made progress in the new process of iron removal of kaolin as well.
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KAOLIN PTMS magnetic separation 20240610

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